Ive had great success using this pulse line on my ELSA Trike. Ive seen fuel line being used (on an ultralight) and I recommended that the UL pilot use pulse line from Aircraft Spruce instead. In my opinion the fuel line is too flexible to transmit a strong pulse to the mechanical fuel pump and reduces the efficiency of the pump. In contrast the pulse line with its thick-walled construction carries a stronger pulse ensuring peak performance of the fuel pump. As a tip, if I had difficulty pushing the pulse line over a fitting I would put the pulse line over needle nose pliers and briefly heat the end of the pulse line with a heat gun while opening the pliers. This would make it easier to push the pulse line over the fitting.